Balancing Chemical Equations PPT...Balancing Chemical Equations PPT 6 February 27, 2015 Balance the following equation so that there are the same number of atoms on each side of the

Balancing Chemical Equations PPT

1

February 27, 2015

Teachers' notesLesson objectives Teacher's notes con't

Balancing Chemical Equations

1) TEKS: 8.5F recognize whether a chemical equation containing coefficients is balanced or not and how that relates to the law of conservation of mass.Prior Knowledge:Students should be able to define atoms, elements, molecules, and compounds before beginning this assignment. They should also have a general understanding of the periodic table of elements.


2

February 27, 2015

Subject:

Grade(s):

Topic:

CrossCurricular Links:

Chemistry

8

Lesson notes:

Chemical Equations

.

Intended Learning Outcome:

Lesson Objectives Teacher's notes con'tTeacher's notes

This lesson is an introduction to balancing chemical equations. This assignment helps show how compounds are a unit and can be added only as groups.

Instructions:

Each slide contains a chemical equation. Students are to balance the equation by cloning the graphic element boxes so that there are equal amounts of all atoms on both sides. When this is accomplished, the coefficients should be written in the equation.

Slide 5 contains a video tutorial on balancing equations. The video solves the same chemical equation shown on that slide.


3

February 27, 2015

Lesson notes continued:

The compounds/molecules are already created on each slide; however, the teacher could choose to build them with his or her students to represent how the atoms are grouped.

Lesson Objectives Teacher's notes Teacher's notes con't

Optional Enhancement:

Edited by: Lisa Jackson, ITS, NEISDAuthored by: Bret Gensburg, University of Akron

Pull he

re fo

r molecule an

d eq

uatio

n samples

Ungroup this object. Then copy/paste and ungroup these objects as you need for creating your own equations.


4

February 27, 2015


5

February 27, 2015

Answer2H2 + O2 2H2O

EXAMPLE: Balance the following equation. A balanced equation has the same number of atoms of each element on both sides of the equation. Clone the molecules which contain atoms of which you do not have enough. Then count the molecules and write the coefficient in the chemical equation.

balancing chemical equations.avi

Work through this sample together, or click on the video file below to watch, listen, and learn how to balance a chemical equation.

Vide

o Tu

toria

l

__H2 +__O2 __H2O


6

February 27, 2015

Balance the following equation so that there are the same number of atoms on each side of the yield sign. (Clone the molecules as needed.) Click on the answer box to reveal the answer. What numbers should be added to the equation, if any? Write them in the spaces below.

AnswerCaCO3 CaO + CO2

__CaCO3 __CaO + __CO2


7

February 27, 2015

AnswerC + 2Cl2 CCl4

Balance the following equation.

__C + __Cl2 __CCl4


8

February 27, 2015

AnswerH2 + Cl2 2HCl


__H2 + __Cl2 __HCl


9

February 27, 2015

Answer2Na + F2 2NaF


__Na + __F2 __NaF


10

February 27, 2015

Answer2H2O2 2H2O + O2


__H2O2 __H2O + __O2


11

February 27, 2015

Answer2KClO3 2KCl + 3O2


__KClO3 __KCl + __O2


12

February 27, 2015

Answer4P + 5O2 P4O10


__P + __O2 __P4O10


13

February 27, 2015

AnswerBaCl2 + H2SO4 BaSO4 + 2HCl


__BaCl2 + __H2SO4 __BaSO4 + __HCl


14

February 27, 2015

AnswerN2 + 3H2 2NH3


__N2 + __H2 __NH3


15

February 27, 2015

Answer2Na + Cl2 2NaCl


__Na + __Cl2 __NaCl


16

February 27, 2015

Answer3Fe + O2 Fe2O3


__Fe + __O2 __Fe2O3


17

February 27, 2015

Attachments

balancing chemical equations.avi

SMART Notebook

Page 1: Nov 4-10:28 AMPage 2: Nov 4-10:28 AMPage 3: Nov 4-10:28 AMPage 4: Apr 13-3:48 PMPage 5: Jan 3-5:19 PMPage 6: Jan 3-5:19 PMPage 7: Jan 3-5:19 PMPage 8: Jan 3-5:19 PMPage 9: Jan 3-5:19 PMPage 10: Jan 3-5:19 PMPage 11: Jan 3-5:19 PMPage 12: Jan 3-5:19 PMPage 13: Jan 3-5:19 PMPage 14: Jan 3-5:19 PMPage 15: Jan 3-5:19 PMPage 16: Jan 3-5:19 PMPage 17: Apr 22-3:26 PMAttachments Page 1

Documents

Balancing Chemical Equations PPT...Balancing Chemical Equations PPT 6 February 27, 2015 Balance the following equation so that there are the same number of atoms on each side of the